Drill arm

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Drill arm

Drill arm

A mechanical arm replacement for speeding up mining. It has a built-in snake drill, which allows the miner to rapidly find and exploit weak lines in the rock. It also has a general-purpose manipulator. It is somewhat ungainly, which slows down movement slightly.

Base Stats

Medical ItemsBody Parts
Tech Level
Market Value
425 Silver

Melee Combat

Melee Attack 1
13 dmg (Stab)
2 seconds cooldown
20% armor penetration
Melee Average DPS
Melee Average AP


Crafted At
Machining table
Required Research
Specialized limbs Techprint
Skill Required
Crafting 5
Work To Make
15,000 ticks (4.17 mins)
Resources to make
Steel 60 + Component 8
ImplantEmpireCommon, DrillArm

The drill arm is an artificial body part that provides both the functionality of a normal arm, while also increasing Mining Speed by 160%, Deep Drilling Speed by 70%, and inflicting a -8% Moving penalty.


Drill arms can be made at a machining table once Specialized Limbs has been researched. Crafting one requires Steel 60 Steel, Component 8 Components, 15,000 ticks (4.17 mins) of work and a crafting skill of 5.

They can also be bought from Outlanders and Empire settlements.


Summary stuff goes here


Installing the part requires 2,500 ticks (41.67 secs) of work, ?x medicine of ?? quality or better, and a Medical skill of 4.

Removing the part requires ? of work, ?x medicine of ?? quality or better, and a Medical skill of ?.

If the operation fails, the part has a chance[What Chance?] to be destroyed.


The drill arm can be installed on pawns if one needs a lot of mining or deep drilling done quickly. The effect is especially potent for pawns with traits that modify global work speed, as the +160% / +70% bonus is added before multiplicative modifiers.

Example: a healthy pawn with a mining skill of 8 (x100%), a single drill arm (+160% for mining / +70% for deep drilling), a combination of very neurotic and industrious traits (x(40+35)%) in a lit environment will have: (100% + 160%) x 100% x 175% = 455% mining speed or 170% x 100% x 175% = 298% deep drilling speed. This already greatly speeds up work, while a second drill arm will result in 755% mining / 420% drilling speed, which is likely an overkill unless one needs a lot of resources mined quickly.

The field hand, a plant work - oriented counterpart, has the same behaviour in terms of bonus speed calculation.

The moving penalty predominately slows move speed but also decreases melee dodge chance and hunting stealth. Note that move speed calculation applies penalties from armor before the scaling to moving capacity - so while an otherwise unencumbered dual-field handed pawn will be 0.74c/s slower than a regular unencumbered pawn, the field handed pawn in cataphract armor will only be 0.61c/s slower than an cataphract-suited unmodified pawn. That is, the qualitative 16% reduction in move speed is maintained, so the larger the move speed penalty, the closer modified and unmodified pawns become quantitatively.


Its attack have 20% AP and 6.50 DPS.

Version history

  • Royalty DLC Release - Added.
  • 1.1.2565 - part efficiency 50% -> 100%, boost 180% -> 160%, movement penalty,